Audio out of sync as recording progresses
Hey, been using screenflow for years, recently i noticed that videos are going out of sync. Im using a 2020 macbook pro, logitech camera and a yeti mic and version 9.0.7.
Once i've finished a recording the audio is fine at the start but progressively goes more and more out of sync as the video goes on. So once you get past about 15 minutes you can visibly see the voice isn't inline with the lips. Thought it might just be in SF but its the same after exporting it.
Any ideas how i can fix this or what the issue might be?
Depending on how far the drift is, you may be able to use a slight speed change on the video source. This may happen when you have two sources that aren't locked. A video device with a slightly variable or off frame rate can cause this.
You may want to test in ScreenFlow 10.0.3 which may have much improved handling of such issues.
Both camera (logitech c920) and mic (blue yeti) are regular usb and the mac only has new usbc so they have to go through a hub. Ive tried the caldigit thunderbolt 4 element which is powered and also an older one that just clicks to the side of the mac.
i was able to connect the mic directly with a separate mini usb to usbc lead but that made no difference.
You can use USB to USB-C adaptor for the c920 as well (this is what I do on my 2020 M1 MBP).
Using adaptors for both might (might not) impact the drift issue.